Patents by Inventor William J. E. Anton

William J. E. Anton has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Latching mechanism for overhead projector post
    Patent number: 5281986
    Abstract: An automatic latching mechanism for the post of an overhead projector includes a spring-biased collar slidably disposed on the post and a cam which lifts the collar as the post is raised and releases the collar to engage a retaining tang when the post reaches a position necessary for projection.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: January 25, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: William J. E. Anton